Quantitation of proton NMR spectra of the human brain using tissue water as an internal concentration reference.

Published

Journal Article

The use of cerebral water as an internal intensity standard for the quantitation of spatially localized proton spectra of the human brain is investigated. The method is validated on standard samples of N-acetyl aspartate (NAA) and lactate, and possible sources of error are discussed. Using the STEAM pulse sequence, concentrations of choline, creatine and NAA in frontal lobe white matter are found to be 1.9 +/- 0.5, 10.6 +/- 1.3 and 16.6 +/- 2.3 mumol/g wet wt, respectively, in 10 normal volunteers. In the thalamus, the concentrations are 2.0 +/- 0.4, 11.6 +/- 2.0 and 17.2 +/- 1.3 mumol/g wet wt, respectively. Choline and creatine concentrations are in good agreement with conventional biochemical values: NAA concentrations are found to be three-fold higher, suggesting overlap of the NAA signal with other compounds. Quantitation relative to tissue water is a convenient and rapid means of quantitating proton spectra of the human brain.

Full Text

Duke Authors

Cited Authors

  • Barker, PB; Soher, BJ; Blackband, SJ; Chatham, JC; Mathews, VP; Bryan, RN

Published Date

  • January 1, 1993

Published In

Volume / Issue

  • 6 / 1

Start / End Page

  • 89 - 94

PubMed ID

  • 8384470

Pubmed Central ID

  • 8384470

International Standard Serial Number (ISSN)

  • 0952-3480

Digital Object Identifier (DOI)

  • 10.1002/nbm.1940060114

Language

  • eng

Conference Location

  • England